![]() ![]() However, if those methods use this, the this will not have been fully initialized yet. Before classes, we used constructor functions to do OOP in JavaScript. It also brought in similarities to different OOP-based programming languages such as C and Java. ![]() Note that methods (including getters and setters) and the prototype chain are already initialized on this before the constructor is executed, so you can even access methods of the subclass from the constructor of the superclass. Thus the introduction of classes in JS made it easier for developers to build software around OOP concepts. Within the constructor body, you can access the object being created through this and access the class that is called with new through new.target.
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